Theory of Majorana zero modes in unconventional superconductors

Y Tanaka, S Tamura, J Cayao - Progress of Theoretical and …, 2024 - academic.oup.com
Abstract Majorana fermions are spin-1/2 neutral particles that are their own antiparticles and
were initially predicted by Ettore Majorana in particle physics but their observation still …

Majorana qubits and non-abelian physics in quantum dot–based minimal Kitaev chains

A Tsintzis, RS Souto, K Flensberg, J Danon, M Leijnse - PRX quantum, 2024 - APS
The possibility of engineering artificial Kitaev chains in arrays of quantum dots coupled via
narrow superconducting regions has emerged as an attractive way to overcome the disorder …

Robust poor man's Majorana zero modes using Yu-Shiba-Rusinov states

F Zatelli, D van Driel, D Xu, G Wang, CX Liu… - Nature …, 2024 - nature.com
Kitaev chains in quantum dot-superconductor arrays are a promising platform for the
realization of topological superconductivity. As recently demonstrated, even a two-site chain …

Crossed Andreev reflection and elastic cotunneling in three quantum dots coupled by superconductors

A Bordin, X Li, D Van Driel, JC Wolff, Q Wang… - Physical review …, 2024 - APS
The formation of a topological superconducting phase in a quantum-dot–based Kitaev chain
requires nearest neighbor crossed Andreev reflection and elastic cotunneling. Here, we …

Minimal Kitaev-transmon qubit based on double quantum dots

DM Pino, RS Souto, R Aguado - Physical Review B, 2024 - APS
Minimal Kitaev chains composed of two semiconducting quantum dots coupled via a
superconductor have emerged as a promising platform to realize and study Majorana bound …

Enhancing the excitation gap of a quantum-dot-based Kitaev chain

CX Liu, AM Bozkurt, F Zatelli, SLD ten Haaf… - Communications …, 2024 - nature.com
Connecting double quantum dots via a semiconductor-superconductor hybrid segment
offers a platform for creating a two-site Kitaev chain that hosts Majorana zero modes at a …

Minimal quantum dot based Kitaev chain with only local superconducting proximity effect

W Samuelson, V Svensson, M Leijnse - Physical Review B, 2024 - APS
The possibility to engineer a Kitaev chain in quantum dots coupled via superconductors has
recently emerged as a promising path toward topological superconductivity and possibly …

Enhancing the Josephson diode effect with Majorana bound states

J Cayao, N Nagaosa, Y Tanaka - Physical Review B, 2024 - APS
We consider phase-biased Josephson junctions with spin-orbit coupling under external
magnetic fields and study the emergence of the Josephson diode effect in the presence of …

Kitaev chain in an alternating quantum dot-Andreev bound state array

S Miles, D Van Driel, M Wimmer, CX Liu - Physical Review B, 2024 - APS
We propose to implement a Kitaev chain based on an array of alternating normal and
superconductor hybrid quantum dots embedded in semiconductors. In particular, the orbitals …

Engineering Majorana bound states in coupled quantum dots in a two-dimensional electron gas

SLD ten Haaf, Q Wang, A Mert Bozkurt, CX Liu… - arXiv e …, 2023 - ui.adsabs.harvard.edu
Artificial Kitaev chains can be used to engineer Majorana bound states (MBSs) in
superconductor-semiconductor hybrids. In this work, we realize a two-site Kitaev chain in a …